PROBLEM TO BE SOLVED: To obtain a sensor sheet that can accurately detect four or more states comprising a lying position, a wake-up state, an upright sitting state and a leave-off state of a user on a spread bedding, can fix the sensor sheet easily and accurately, and is also improved in maintenance properties of a load detection area.SOLUTION: A sensor sheet is laid by an upper surface of a spread bedding having cushioning properties, and has a user's state detection function. The sensor sheet is configured by: comprising a cloth-shaped base material, and including at least 3-detective areas on the base material； has a first detection area and a second detection area arranged at the position of distances different to each other from the head side edge of the sensor sheet, and detecting contact of a human body to each detection area； has a third detection area arranged along the side end of the right side or the left side of the sensor sheet, and detecting the contact of the human body to the side end vicinity of the sensor sheet； and having a function of detecting and outputting a user's state by the combination of the contact state detected by these three detection areas.SELECTED DRAWING: Figure 1【課題】敷き寝具上の使用者の臥位状態、起床状態、端座状態、離床状態を含む４種以上の状態を正確に検知でき、簡便かつ正確にセンサシーツを固定可能で、荷重検知エリアのメンテナンス性も向上されたセンサシーツを得る。【解決手段】クッション性を有する敷き寝具の上面に敷設され、使用者の状態検知機能を有するセンサシーツであり、該センサシーツは布帛状の基材からなり、基材上に少なくとも３つの検知エリアを備え、 第１の検知エリアと第２の検知エリアはセンサシーツの頭側端から互いに異なる距離の位置に配置されており、それぞれの検知エリアへの人体接触を検知し、 第３の検知エリアはセンサシーツの右側あるいは左側の側端部に沿って配置されており、センサシーツの側端部付近への人体接触を検知し、 これら３つの検知エリアが検知した接触状態の組合せにより使用者の状態を検知し出力する機能を有する、センサシーツ。【選択図】図１
